A Multi-Functional Reconfigurable Metasurface: Electromagnetic Design Accounting for Fabrication Aspects
Alexandros Pitilakis,Odysseas Tsilipakos,Fu Liu,Kypros M. Kossifos,Anna C. Tasolamprou,Do-Hoon Kwon,Mohammad Sajjad Mirmoosa,Dionysios Manessis,Nikolaos V. Kantartzis,Christos Liaskos,Marco A. Antoniades,Julius Georgiou,Costas M. Soukoulis,Maria Kafesaki,Sergei A. Tretyakov +14 more
TLDR
This article presents the theoretical considerations and the design evolution of a proof-of-concept reconfigurable metasurface, primarily used as a tunable microwave absorber, but also as a wavefront manipulation and polarization conversion device in reflection.Abstract:
In this article, we present the theoretical considerations and the design evolution of a proof-of-concept reconfigurable metasurface, primarily used as a tunable microwave absorber, but also as a wavefront manipulation and polarization conversion device in reflection. We outline the design evolution and all considerations taken into account, from the selection of patch shape, unit cell size, and substrate to the topology of the structure that realizes the desired tunability. The presented design conforms to fabrication restrictions and is codesigned to work with an integrated circuit (IC) chip for providing tunable complex loads to the metasurface, using a commercially available semiconductor process. The proposed structure can perform multiple tunable functionalities by appropriately biasing the IC. Perfect absorption for a wide range of incidence angles of both linear polarization states, accommodating a spectral range in the vicinity of 5 GHz, with potential also for wavefront control, exemplified via anomalous reflection and polarization conversion. The end vision is for such a design to be scalable and deployable as a practical HyperSurface, i.e., an intelligent multifunctional metasurface capable of concurrent reconfigurable functionalities: absorption, beam steering, polarization conversion, wavefront shaping, holography, and sensing.read more
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Tri-state Metasurface-Based Electromagnetic Screen with Switchable Reflection, Transmission, and Absorption Functionalities
TL;DR: In this article, an electromagnetic screen with switchable transmission, reflection, and absorption functionalities is proposed, which is composed of tunable metasurfaces inserted in a multilayer structure.
Journal ArticleDOI
In Situ Customized Illusion Enabled by Global Metasurface Reconstruction
Yuetian Jia,Chao Qian,Zhixiang Fan,Yinzhang Ding,Zhedong Wang,Dengpan Wang,Er-Ping Li,Bin Zeng,Tong Cai,Hongsheng Chen +9 more
TL;DR: In this paper, a novel and intelligent optical illusion supported by form-free metasurfaces via a deep learning architecture is reported, which can not only render a similar illusion effect but also greatly reduce the parameter space in physics.
Journal ArticleDOI
Flexible 3D Printed Conductive Metamaterial Units for Electromagnetic Applications in Microwaves.
Anna C. Tasolamprou,Despoina Mentzaki,Despoina Mentzaki,Zacharias Viskadourakis,Eleftherios N. Economou,Eleftherios N. Economou,Maria Kafesaki,Maria Kafesaki,George Kenanakis +8 more
TL;DR: The resonators produce well defined resonant electromagnetic features that depend on the structural details and the infiltrating dielectric materials, indicating that the thin, flexible and light 3D printed structures may be used as electromagnetic microwave components and electromagnetic fabrics for coating a variety of devices and infrastructure units, while adapting to different sizes.
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Building a Smart EM Environment - AI-Enhanced Aperiodic Micro-Scale Design of Passive EM Skins
TL;DR: In this paper , an innovative process for the design of static passive smart skins (SPSSs) is proposed to take into account, within the synthesis, the electromagnetic interactions due to their finite (macro-level) size and aperiodic (micro-scale) layouts.
Posted Content
Building a Smart EM Environment - AI-Enhanced Aperiodic Micro-Scale Design of Passive EM Skins.
TL;DR: In this article, an innovative process for the design of static passive smart skins (SPSSs) is proposed to take into account, within the synthesis, the electromagnetic interactions due to their finite (macro-level) size and aperiodic (micro-scale) layouts.
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